The mass abduction of 276 schoolgirls on April 14, 2014, from their school in northeastern Nigeria sparked an global outcry and the #BringBackOurGirls social media campaign

Five years after being kidnapped by Boko Haram, freed Chibok girls have nightmares about their 100 missing classmates and are burdened by guilt for surviving, while shielding parents of dead friends from the truth about their daughters' fate.

The mass abduction of 276 schoolgirls on April 14, 2014, from their school in northeastern Nigeria - the biggest publicity coup of Boko Haram's jihadist insurgency - sparked an global outcry and the #BringBackOurGirls social media campaign.

On the fifth anniversary of the kidnapping, which the Thomson Reuters Foundation exclusively revealed was the accidental outcome of a botched robbery, many former captives are still haunted by a tragedy the world has largely forgotten.

"Sometimes, it can make me sleepless because I'm thinking of them. Sometimes, they are even appearing in my dreams. It is very painful," Margret Yama said in a phone interview from Yola, in northeastern Nigeria.

The 22-year-old is among the 107 Chibok girls who were found or rescued by the Nigerian military, or freed in negotiations between the government and Boko Haram.

President Muhammadu Buhari made crushing Boko Haram a pillar of his 2015 election campaign and he has vowed to spare no effort in ensuring all abducted Nigerians are freed.

But his administration has failed to defeat the decade-long insurgency, who have been waging attacks since 2009, with an uptick in attacks on military bases and strategic towns ahead of February elections, in which Buhari secured a second term.

"Efforts are being intensified to secure the release of all hostages, not just the Chibok girls," said presidential spokesman Garba Shehu.

"The operations are ongoing and the aim is for comprehensive engagement and settlement," he said, adding that a split within Boko Haram - with the breakaway of the Islamic State in West Africa faction in 2016 - has affected government efforts.

Yama is one of scores of young women that the government sent in 2017 to a special remedial course at the American University of Nigeria (AUN) in Yola.

"I am thinking, how are they feeling now? More especially when it is raining season, I am thinking of them because no shelter, no room, without even a mat to sleep on, talk less of a bed," Yama said.

"Also this aeroplane that used to go to Sambisa and drop bombs and kill people, so I am thinking of them, too," she said, recalling Nigerian military air raids on the forest.

Some of the Chibok girls refused to go home when approached by mediators during a second group release in 2017, fuelling fears that they had been radicalised, or felt afraid, ashamed or even too powerful to return to their old lives.

"We didn't tell their families about the ones that died. But they are always asking us and we tell them that they are fine," said 22-year-old Hannatu Stephens, also a student at the AUN.

"We don't know how to tell them they are dead."

Stephens lost a leg and some close friends who were sitting and chatting when a military plane attacked the hideout.

"Yesterday, I am thinking about (one of her friends) ... I cried about that girl, about her, and I am thinking about her mother," said Stephens, in a voice quivering with emotion.

Although the government provided Stephens with a prosthetic limb, she said the pain in her leg sometimes prevents her from sleeping at night or focusing on her studies.

For 21-year-old Kauna Bitrus, who is in her second semester at a community college in the United States, sadness sometimes strikes while she sits in class. She fantasises that her missing classmates could attend lessons with her.

Bitrus was among 57 girls who escaped by jumping off the trucks ferrying them away from their Chibok school. She vividly remembers holding her friend's hand as they decided to jump, then spending the night running and hiding in the forest.

Bitrus said she was scared that she could not cope with the rigours of education after all she had been through.

But she was pleasantly surprised to earn a high score in her first semester and the college plans to honour her with an 'Against All Odds Award' during a special awards dinner on April 17, almost exactly five years since the traumatic kidnap.

"I wish my schoolmates are here with me so that they can have this education that I am having together," she said.

"I feel so sad that they didn't get to come back."

(Reporting by Adaobi Tricia Nwaubani, Editing by Katy Migiro. Please credit the Thomson Reuters Foundation, the charitable arm of Thomson Reuters, that covers humanitarian news, women's and LGBT+ rights, human trafficking, property rights, and climate change. Visit http://news.trust.org)

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